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Refactored /etc/issue parsing.

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Antoine POPINEAU 2024-08-12 22:31:30 +02:00
parent ed8393e1d1
commit 083b9ba6f1
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1 changed files with 26 additions and 21 deletions
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47
src/info.rs
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@ -57,39 +57,44 @@ pub fn get_issue() -> Option<String> {
(now.format("%a %b %_d %Y").to_string(), now.format("%H:%M:%S").to_string())
};
let count = match UtmpParser::from_path("/var/run/utmp")
.map(|utmp| utmp.into_iter().filter(|user| matches!(user, Ok(UtmpEntry::UserProcess { .. }))).count())
let user_count = match UtmpParser::from_path("/var/run/utmp")
.map(|utmp| {
utmp.into_iter().fold(0, |acc, entry| match entry {
Ok(UtmpEntry::UserProcess { .. }) => acc + 1,
Ok(UtmpEntry::LoginProcess { .. }) => acc + 1,
_ => acc,
})
})
.unwrap_or(0)
{
n if n < 2 => format!("{n} user"),
n => format!("{n} users"),
};
let vtnr: usize = env::var("XDG_VTNR").unwrap_or_else(|_| "0".to_string()).parse().expect("unable to parse VTNR");
let vtnr: usize = env::var("XDG_VTNR").unwrap_or_else(|_| "0".to_string()).parse().unwrap_or(0);
let uts = utsname::uname();
if let Ok(issue) = fs::read_to_string("/etc/issue") {
let issue = issue.replace("\\S", "Linux").replace("\\l", &format!("tty{vtnr}"));
let issue = issue
.replace("\\S", "Linux")
.replace("\\l", &format!("tty{vtnr}"))
.replace("\\d", &date)
.replace("\\t", &time)
.replace("\\U", &user_count);
return match uts {
Ok(uts) => Some(
issue
.replace("\\s", uts.sysname().to_str().unwrap_or(""))
.replace("\\r", uts.release().to_str().unwrap_or(""))
.replace("\\v", uts.version().to_str().unwrap_or(""))
.replace("\\n", uts.nodename().to_str().unwrap_or(""))
.replace("\\m", uts.machine().to_str().unwrap_or(""))
.replace("\\d", &date)
.replace("\\t", &time)
.replace("\\U", &count)
.replace("\\x1b", "\x1b")
.replace("\\033", "\x1b")
.replace("\\e", "\x1b")
.replace(r"\\", r"\"),
),
let issue = match uts {
Ok(uts) => issue
.replace("\\s", uts.sysname().to_str().unwrap_or(""))
.replace("\\r", uts.release().to_str().unwrap_or(""))
.replace("\\v", uts.version().to_str().unwrap_or(""))
.replace("\\n", uts.nodename().to_str().unwrap_or(""))
.replace("\\m", uts.machine().to_str().unwrap_or(""))
.replace("\\o", uts.domainname().to_str().unwrap_or("")),
_ => Some(issue),
_ => issue,
};
return Some(issue.replace("\\x1b", "\x1b").replace("\\033", "\x1b").replace("\\e", "\x1b").replace(r"\\", r"\"));
}
None